Environmental Sciences Quiz 586 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. What is the normal amounts of ozone in the atmosphere?

Correct Answer: D) 300.

2. Carbon is used to make sugars (chemical energy) in which step of the carbon cycle?

Correct Answer: D) Photosynthesis.

3. Germs cause diseases in living organisms.

Correct Answer: B) Theory.

4. A material that cannot break down naturally.

Correct Answer: B) Nonbiodegradable.

5. A species whose numbers have fallen so low that it is likely to become extinct in the near future

Correct Answer: A) Endangered species.

6. Which is NOT one of the Physical layers of the Earth?

Correct Answer: C) Asthenosphere.

7. Economic considerations are not involved with environmental decisions

Correct Answer: B) FALSE.

8. The system of classifying living things into categories

Correct Answer: D) Taxonomy.

9. These are called seasonal plants.

Correct Answer: B) Herbs.

10. Why is more atmospheric carbon dioxide bad

Correct Answer: C) The gas inhibits the escape of heat from the earths atmosphere.

11. Water diversion projects may involve the movement of water to dry regions using

Correct Answer: A) Canals.

12. Where is 97% of the Earth's water located?

Correct Answer: C) Oceans.

13. In the United States, most people live in ..... areas.

Correct Answer: A) Urban.

14. An area where freshwater feeds into saltwater.

Correct Answer: C) Estuaries.

15. Which was the first book that helped the public become more environmentally aware?

Correct Answer: B) Silent Spring by Rachel Carson.

16. When all the resources are used and no more resources such as space or food are available, a ..... must stop growing.

Correct Answer: C) Population.

17. What are the 3 key ingredients needed for photosynthesis

Correct Answer: D) Sunlight, water, carbon dioxide.

18. In which layer do virtually all-weather phenomena take place?

Correct Answer: D) Troposphere.

19. Which best describes the ozone layer?

Correct Answer: A) Protection from ultraviolet radiation.

20. In parasitism, this is the organism that benefits.

Correct Answer: B) Parasite.